Entanglement Entropy of Mixed State in Thermal CFT$_2$
Xin Jiang, Haitang Yang, Zilin Zhao
Published: 2025/1/20
Abstract
Using the subtraction approach, we give the bipartite mixed state entanglement entropy in thermal $\text{CFT}_2$. With these entanglement entropies, we examine in detail the holographic duals of different entangling configurations unambiguously. In the thermofield double state, we show a horizon-crossing feature in two-sided entanglement configuration.